Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.1 6/24/83; site pegasus.UUCP
Path: utzoo!linus!decvax!harpo!eagle!mhuxl!houxm!hogpc!pegasus!guidi
From: guidi@pegasus.UUCP
Newsgroups: net.unix
Subject: Re: editor query
Message-ID: <732@pegasus.UUCP>
Date: Fri, 4-Nov-83 21:49:11 EST
Article-I.D.: pegasus.732
Posted: Fri Nov  4 21:49:11 1983
Date-Received: Mon, 7-Nov-83 06:40:18 EST
References: <519@hcr.UUCP>, <2602@utcsrgv.UUCP>
Organization: AT&T Information Systems, Lincroft NJ
Lines: 4

How to change every A in a file except for those lines containing a B?
Using 'ed':
	v/B/s/A/...../
where A and B are reg exp as usual.